/*
 * Copyright (C) 2004-2010 Geometer Plus <contact@geometerplus.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include <ZLStringUtil.h>
#include <ZLFile.h>
#include <ZLDir.h>

#include "DocBookReader.h"
DocBookReader::DocBookReader(BookModel &model,const PlainTextFormat &myFormat,const std::string &encoding):DocReader(encoding),BookReader(model) ,myFormat(myFormat) {
}
void DocBookReader::startDocumentHandler() {
	setMainTextModel();
		pushKind(REGULAR);
		beginParagraph();
		myLineFeedCounter = 0;
		myInsideContentsParagraph = false;
		enterTitle();
		myLastLineIsEmpty = true;
		myNewLine = true;
		mySpaceCounter = 0;
}
void DocBookReader::endDocumentHandler() {
	internalEndParagraph();
}

bool DocBookReader::characterDataHandler(std::string &str) {
	const char *ptr = str.data();
		const char *end = ptr + str.length();
		for (; ptr != end; ++ptr) {
			if (isspace((unsigned char)*ptr)) {
				if (*ptr != '\t') {
					++mySpaceCounter;
				} else {
					mySpaceCounter += myFormat.ignoredIndent() + 1; // TODO: implement single option in PlainTextFormat
				}
			} else {
				myLastLineIsEmpty = false;
				break;
			}
		}
		if (ptr != end) {
			if ((myFormat.breakType() & PlainTextFormat::BREAK_PARAGRAPH_AT_LINE_WITH_INDENT) &&
					myNewLine && (mySpaceCounter > myFormat.ignoredIndent())) {
				internalEndParagraph();
				beginParagraph();
			}
			addData(str);
			if (myInsideContentsParagraph) {
				addContentsData(str);
			}
			myNewLine = false;
		}
		return true;
}
bool DocBookReader::newLineHandler() {
	if (!myLastLineIsEmpty) {
			myLineFeedCounter = -1;
		}
		myLastLineIsEmpty = true;
		++myLineFeedCounter;
		myNewLine = true;
		mySpaceCounter = 0;
		bool paragraphBreak =
			(myFormat.breakType() & PlainTextFormat::BREAK_PARAGRAPH_AT_NEW_LINE) ||
			((myFormat.breakType() & PlainTextFormat::BREAK_PARAGRAPH_AT_EMPTY_LINE) && (myLineFeedCounter > 0));

		if (myFormat.createContentsTable()) {
	//		if (!myInsideContentsParagraph && (myLineFeedCounter == myFormat.emptyLinesBeforeNewSection() + 1)) {
				/* Fixed by Hatred: remove '+ 1' for emptyLinesBeforeNewSection, it looks like very strange
					 when we should point count of empty string decrised by 1 in settings dialog */
			if (!myInsideContentsParagraph && (myLineFeedCounter == myFormat.emptyLinesBeforeNewSection())) {
				myInsideContentsParagraph = true;
				internalEndParagraph();
				insertEndOfSectionParagraph();
				beginContentsParagraph();
				enterTitle();
				pushKind(SECTION_TITLE);
				beginParagraph();
				paragraphBreak = false;
			}
			if (myInsideContentsParagraph && (myLineFeedCounter == 1)) {
				exitTitle();
				endContentsParagraph();
				popKind();
				myInsideContentsParagraph = false;
				paragraphBreak = true;
			}
		}

		if (paragraphBreak) {
			internalEndParagraph();
			beginParagraph();
		}
		return true;
}

void DocBookReader::internalEndParagraph() {
	if (!myLastLineIsEmpty) {
		//myLineFeedCounter = 0;
		myLineFeedCounter = -1; /* Fixed by Hatred: zero value was break LINE INDENT formater -
		                           second line print with indent like new paragraf */
	}
	myLastLineIsEmpty = true;
	endParagraph();
}
